公开(公告)号：EP4376135A1

公开(公告)日：2024-05-29

申请号：EP22826788.6

申请日：2022-11-04

申请人： Eve Power Co., Ltd. ,  Huizhou Eve Power Co., Ltd

发明人： CHEN, Wen ,  LI, Shangyi ,  HUANG, Liming

IPC分类号： H01M10/00 ,  H01M6/00 ,  H01M10/04 ,  H01M50/533

CPC分类号： Y02P70/50

摘要： The application discloses a coil structure, including a coil, both positive and negative tabs of the coil include a tab uncut area between the tab outer ring cut-out area and the tab center cut-out area, and along the axial direction of the coil, the tab uncut area protrudes from the tab outer ring cut-out area and the tab center cut-out area. After the above-mentioned cut-out area is cut by the cutting process, the problem that the edge of the tab is turned out after rubbing can be improved, and the avoidance space provided by the cutting process can also reduce the risk of tab deformation caused by the extrusion of the jellyroll with the case, and solve the problem that the welding needle or thimble cannot smoothly enter the center hole. Cutting off the negative electrode tab outer ring can also reserve a space for the installation of the negative current collection plate, which can prevent the negative current collection plate from sinking during the battery sealing process, resulting in an increase in the core pressing amount and avoiding short circuit. The application also discloses a battery including the above-mentioned coil structure.

公开(公告)号：EP4303998A1

公开(公告)日：2024-01-10

申请号：EP22818599.7

申请日：2022-10-14

申请人： Eve Power Co., Ltd.

发明人： YUE, Liangliang ,  HUANG, Liming ,  XIAO, Tianli ,  CHEN, Wen ,  LI, Shangyi ,  LIU, Jing ,  XU, Yuebin

IPC分类号： H01M50/567

摘要： The present application provides a battery housing assembly and a battery. The housing assembly comprises a housing body, an electrode column and an insulating part, wherein the housing body is provided with a mounting hole, the electrode column penetrates the mounting hole, the column body comprises a first end and a second end, the second end is provided inside the housing body, the first end is provided with a restricting part, the second end is provided with a riveting part, the restricting part and the riveting part jointly clamp the insulating part and the housing body, the end surface of the second end is provided with a groove, and the groove is adjacent to the riveting part. By providing an integrated electrode column and fixing the electrode column and the housing body by riveting, not only may the structure of the electrode column be simplified, but also may reduce the gap generated by the assembly of the housing assembly and improve the sealing of the housing assembly; by providing a groove at the riveted end of the electrode column, a local thickness between the riveting part and the housing body may be reduced, so as to enable the riveting part to be bent according to the preset position, which may be easy to avoid the cracking problem due to the excessive length of the riveted flange, thereby reducing the difficulty of riveting.

公开(公告)号：EP4350852A1

公开(公告)日：2024-04-10

申请号：EP22818606.0

申请日：2022-10-17

申请人： Eve Power Co., Ltd.

发明人： LI, Shangyi ,  YUE, Liangliang ,  WANG, Zhiming

IPC分类号： H01M50/179 ,  H01M50/184 ,  H01M50/188

摘要： The present application provides a top cap assembly and a battery structure. The battery includes a housing including a mounting hole, and the top cap assembly passes through the mounting hole of the housing. The top cap assembly includes a pole, a sealing element, and a plastic element. The pole is provided with an annular groove recessed in a radial direction. The sealing element is sleeved on the pole and positioned in the annular groove. The sealing element is sandwiched between the housing and a groove wall of the annular groove, and the sealing element is partially positioned outside the housing. The plastic element is sleeved on the sealing element and positioned outside the housing 40, and the plastic element is partially sandwiched between the housing and the groove wall of the annular groove.

公开(公告)号：EP4343952A1

公开(公告)日：2024-03-27

申请号：EP22826581.5

申请日：2022-10-21

申请人： Eve Power Co., Ltd.

发明人： LI, Shangyi ,  YUE, Liangliang ,  WANG, Zhiming ,  CHEN, Min

IPC分类号： H01M50/503

摘要： A current collecting plate and a battery are provided in the present application, where the current collecting plate is applied to a battery including a battery cell and a housing, the current collecting plate includes a plate body and a buffer part, and at least two buffer parts are provided, each of the buffer parts is bent to form an abutment part, the abutment part is protruded from a side of the plate body away from the battery cell, the abutment part abuts against the housing, and one end of either of two adjacent ones of the buffer parts is connected through a weak part, and another end of the buffer part away from the weak part is connected with the plate body.

公开(公告)号：EP4343951A1

公开(公告)日：2024-03-27

申请号：EP22826582.3

申请日：2022-10-27

申请人： Eve Power Co., Ltd.

发明人： LI, Shangyi ,  CHEN, Wen ,  HUANG, Liming

IPC分类号： H01M50/502

摘要： A current collecting plate and a battery are provided. The battery includes a roll core, a pole and a current collecting plate, the roll core is welded to the current collecting plate, and the pole is electrically connected with the roll core through the current collecting plate. The current collecting plate includes a main body part and a welding part, the welding part is bent relative to the main body part, and the current collecting plate is welded with the roll core through the welding part.

公开(公告)号：EP4329072A1

公开(公告)日：2024-02-28

申请号：EP22822262.6

申请日：2022-11-04

申请人： Eve Power Co., Ltd.

发明人： LI, Shangyi ,  HUANG, Liming ,  CHEN, Min

IPC分类号： H01M50/342 ,  H01M50/152 ,  H01M50/213

摘要： The present disclosure relates to the field of battery technology. A battery cell with directional pressure relief and a battery module are provided. The battery cell with directional pressure relief includes a housing and a cover plate, and the cover plate is buckled on the housing. The cover plate is provided with an explosion-proof valve, the explosion-proof valve includes an arc notch and a connecting portion, the arc notch and the connecting portion are connected end-to-end to enclose and define a circular structure, and the circular structure separates the cover plate into a circular part and an annular part. When a thermal runaway occurs, the explosion-proof valve is flushed open, the arc notch is fractured, and the circular part is turned around the connecting portion.